Heating-stove.



No. 705,828. Patented July 29, |902.

W. DBENGWITZ. HEATING sTovE. (Application filed Feb. 2o, woz.)

(No Model.)

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UNITED STATES PATENT OFFICE.

WILLIAMfDRENG-WITZ, OF PITTSBURG, PENNSYLVANIA.

` H EATING-STOVE.

SPECIFICATION forming 159.11-, of Letters Patent No. 705,828, dated July 29, 1902. Appiicauon naa February 20,1902. stanno. 94.959. (No modelo useful improvements in .gas-stoves, and relates more particularly to heating-stoves.

The present invention has for its object to provide airjchambers on the sides and rear of the stoves and to form suitable openings therein for the purpose `of. creating a draft that will greatly increase the units of heat and also draw all moisture and dampness from the room. A

My invention further aims to provide a gas-` stove of the above-described character that will be extremely simple in construction, strong, durable, comparatively 4inexpensive to manufacture, and* highly efficient in its use.

With the 'above and other objects in View the invention consists in the novel combina` tion and arrangement of parts to be hereinafter more fully described, and specifically pointed out 4in the claims.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, and wherein like numeralsof` reference indicate like parts throughout the several views, in which- Figure 1 is a front View of my improved gas-stove. Fig. 2 is avertical sectional view taken on the line 2 2 of Fig. 3. Fig. 3 is a transverse vertical sectional view thereof. Fig. 4 is a longitudinal sectional view taken on the line 4 4 of Fig. 3. Fig. 5 is a side elevation of the stove, partly brokenawayl In the drawingsthereference-numeral 1 indicates the casing of thestove. In said casing are secured partitions 2, forming cham bers 3 K3, and the bottom of the casing is represented by the'referencenumeral 4 and has suitable supports 6. In said bottom are formed openings 6 6, communicating with the air-chambers 3. At the upper end of the partitions 2 are formed a series of openings 7 Si Between the partitions 2 is secured a back wall 9, said back wall carrying a suitable coverin g of asbestos or other flreproofpmaterial 10. This back wal19 is curved, as shown at 1l, and suitably secured at 12 to thepartitions 2. An air-chamber 14 is formed in the rear of the back wall 9 and the casing, and a partition 15, having a series of openingsul formed therein, extends horizontally, connecting the rear face of the back wall to the hood 17, which is rigidly secured at 18 to the casing and extends upwardly from the rear portion of the casing to the front thereof, as shown in Fig. 3, forming a mixing-chamber 19 betweenthe curved upper end of the back wall and the hood. t An air-chamber20 is also formed in the rear of `hthe hood and entends to the inner walls of the casing, communicating with the Iiue 2l. The upper'end of the casing is crimped, as shown at 22, to receive the sliding cover or top 23. The gas-supply y pipe 24 extends through the bottom 4 and leads into the ordinary gas-mixer'25, communicating with the gas-burner 26, and the fender 27 is placed in front of the burner and restsupon the upper face of the base of the casing, this fender having also formed therein a number of openings 28. The side walls of the casing have also formed therein a nun1- ber of openings 29, and like openings 30 are formed in the rear Wall of the casing.

The operation of my improved gas-stove is as follows: The air being admitted from the bottom and sides of the chamber 3 will circulate and mix with the hot air in the mixing chamber 19 and fromV the air circulating through the air-chamber 14'in the rear of the stove. In this chamber 19 the heat will be balfled i and may be conveyed through the opening 7 again into the side air-chambers 3, thence through the openings 8 into the airchamber 20, leading to the line. It will be 'seen that by reason of the many openings leading from the open air into thesaid rear chambers and also by reason of the openings formed in the lower base of the casing all the dampness and excessive moisture in the room will be drawn through the stove and that by reason of the gas mixing with the heated air in the mixing-chamber the heat will be bafiled, preventing the direct draft, thereby 0b IOO taining a greater number of units of heat than could be obtained in stoves wherein a direct draft is created.

The many advantages obtained by the use of my improved device will be readily apparent from the foregoing description, taken in connection with the accompanying drawings.

It will be noted that various changes may be made in the details of construction without departing from the general spirit of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is=

1. In a gas-stove, the combination of a casing, partitions arranged therein adjacent to the side walls thereof forming chambers between said partitions and the side walls of the casing, said chambers in communication with the open air, a flreback having a curved upper end, a rear chamber between the fireback and therear wall of the casing, said chamber in communication with the open air, a hood mounted in the casing above the curved upper end of the irebackforming a chamber in communication with the rear chamber and the side chambers, and a cover on the casing forming a chamber above the hood which is in communication with the exitiue, substantially as described.

2. In a gas-stove, the combination of a casing' partitions arranged therein and forming chambers between the same and the side walls' of the casing, a fireback having a curved upper end, a chamber between the fireback and the rear wall of the casing and in communication with the open air, a curved hood mounted over the curved upper end of the reback forming a hot-air chamber which is in communication with the side and rear chambers, and a cover for said casing forming a chamber above the hood which is in communication with the side and rear chambers, substantially as described.

3. In a gas-stove, the combination of a casing, partitions therein adjacent to the side Walls of the casing forming side chambers in communication with the open air, a ireback having a forwardly-curved upper end, a rear chamber between the iireback and the rear wall 0f the casing in communication with the open air, a hood forming a hot-air chamber between the same and the upper end of the reback and in com munication with the rear chamber, and a chamber above said hot-air chamber in communication with the exit-fine and side chambers,substantially as described.

In testimony whereof I afx my signature in the presence of two witnesses.

VILLIAM DRENGWITZ. 

